/*
 * Copyright Java Operator SDK Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.javaoperatorsdk.operator.dependent.externalstate;

import java.util.List;
import java.util.concurrent.atomic.AtomicInteger;

import io.fabric8.kubernetes.api.model.ConfigMap;
import io.javaoperatorsdk.operator.api.config.informer.InformerEventSourceConfiguration;
import io.javaoperatorsdk.operator.api.reconciler.*;
import io.javaoperatorsdk.operator.api.reconciler.dependent.Dependent;
import io.javaoperatorsdk.operator.processing.event.source.EventSource;
import io.javaoperatorsdk.operator.processing.event.source.informer.InformerEventSource;
import io.javaoperatorsdk.operator.support.TestExecutionInfoProvider;

@Workflow(dependents = @Dependent(type = ExternalWithStateDependentResource.class))
@ControllerConfiguration
public class ExternalStateDependentReconciler
    implements Reconciler<ExternalStateCustomResource>, TestExecutionInfoProvider {

  public static final String ID_KEY = "id";
  private final AtomicInteger numberOfExecutions = new AtomicInteger(0);

  @Override
  public UpdateControl<ExternalStateCustomResource> reconcile(
      ExternalStateCustomResource resource, Context<ExternalStateCustomResource> context) {
    numberOfExecutions.addAndGet(1);

    return UpdateControl.noUpdate();
  }

  public int getNumberOfExecutions() {
    return numberOfExecutions.get();
  }

  @Override
  public List<EventSource<?, ExternalStateCustomResource>> prepareEventSources(
      EventSourceContext<ExternalStateCustomResource> context) {
    var configMapEventSource =
        new InformerEventSource<>(
            InformerEventSourceConfiguration.from(
                    ConfigMap.class, ExternalStateCustomResource.class)
                .build(),
            context);
    return List.of(configMapEventSource);
  }
}
